.\"     $OpenBSD: audioamd.4,v 1.7 2007/05/31 19:19:56 jmc Exp $
.\"
.\" Copyright (c) 1998 Jason L. Wright (jason@thought.net)
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.Dd $Mdocdate: May 31 2007 $
.Dt AUDIOAMD 4 sparc
.Os
.Sh NAME
.Nm audioamd
.Nd SPARC telephone quality audio device
.Sh SYNOPSIS
.Cd "audioamd0 at mainbus0 " Pq "sun4c"
.Cd "audioamd0 at obio0    " Pq "sun4m"
.Cd "audioamd0 at sbus0    " Pq "sun4m"
.Cd "audio*  at audioamd?"
.Sh DESCRIPTION
The
.Nm
device uses the
.Tn AMD
AM79C30A
Digital Subscriber Controller
chip to implement the audio device interface described in
.Xr audio 4 .
This device is found onboard on several sun4c and sun4m models.
.Pp
Simultaneous playback and capture are supported by the
.Nm
device.
The
.Nm
has a maximum precision of 8 bits and is monaural on both input and output.
.Sh SEE ALSO
.Xr ioctl 2 ,
.Xr audio 4 ,
.Xr intro 4 ,
.Xr sbus 4
